21581208

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 46156392

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 31, 33, 36, 44, 54, 62, 66, 72, 88, 93, 99, 108, 124, 132, 186, 198, 216, 248, 264, 279, 293, 297, 341, 372, 396, 558, 586, 594, 682, 744, 792, 837, 879, 1023, 1116, 1172, 1188, 1364, 1674, 1758, 2046, 2232, 2344, 2376, 2637, 2728, 3069, 3223, 3348, 3516, 4092, 5274, 6138, 6446, 6696, 7032, 7911, 8184, 9083, 9207, 9669, 10548, 12276, 12892, 15822, 18166, 18414, 19338, 21096, 24552, 25784, 27249, 29007, 31644, 36332, 36828, 38676, 54498, 58014, 63288, 72664, 73656, 77352, 81747, 87021, 99913, 108996, 116028, 163494, 174042, 199826, 217992, 232056, 245241, 299739, 326988, 348084, 399652, 490482, 599478, 653976, 696168, 799304, 899217, 980964, 1198956, 1798434, 1961928, 2397912, 2697651, 3596868, 5395302, 7193736, 10790604, 21581208]

約数ペア:

[(1, 21581208), (2, 10790604), (3, 7193736), (4, 5395302), (6, 3596868), (8, 2697651), (9, 2397912), (11, 1961928), (12, 1798434), (18, 1198956), (22, 980964), (24, 899217), (27, 799304), (31, 696168), (33, 653976), (36, 599478), (44, 490482), (54, 399652), (62, 348084), (66, 326988), (72, 299739), (88, 245241), (93, 232056), (99, 217992), (108, 199826), (124, 174042), (132, 163494), (186, 116028), (198, 108996), (216, 99913), (248, 87021), (264, 81747), (279, 77352), (293, 73656), (297, 72664), (341, 63288), (372, 58014), (396, 54498), (558, 38676), (586, 36828), (594, 36332), (682, 31644), (744, 29007), (792, 27249), (837, 25784), (879, 24552), (1023, 21096), (1116, 19338), (1172, 18414), (1188, 18166), (1364, 15822), (1674, 12892), (1758, 12276), (2046, 10548), (2232, 9669), (2344, 9207), (2376, 9083), (2637, 8184), (2728, 7911), (3069, 7032), (3223, 6696), (3348, 6446), (3516, 6138), (4092, 5274)]